Teens give boy a helping hand

He extended his bulky, cream-colored prosthetic arm and pulled back, activating the clenching motion in the fingers of the artificial limb, until he got it right. Plante has Jacobsen syndrome, a condition caused by a loss of genetic material from chromosome 11, which left him with just a small cluster of fat cells below his right wrist bones. The class has designed and built an artificial hand for their neighbor to the north. Zakrajsek set the project in motion after watching a three-minute video about a father who built a robotic hand for his son using a 3-D printer.

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A North Carolina college student has created a prosthetic hand for kids that costs a lot less than regular models. The invention that was made using a 3D printer and has dramatically improved life for one little boy, reports CBS News correspondent Anna Werner. When I bend it like this, it opens," he said showing off the device.